/*****************************************************************************
 *   Copyright 2005 Tim A Wang
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 ****************************************************************************/
package com.jb.web.renderer;

import com.jb.web.bean.FormField;
import com.jb.web.context.WebContext;

import com.jb.faces.component.UIComponent;


public class HiddenFieldRenderer extends FormItemRenderer {
    public StringBuffer render(WebContext pCtx, UIComponent itemToRender) {
        FormField formField = (FormField) itemToRender;
        StringBuffer html = new StringBuffer();

        Object value = (Object) formField.getDecodedValue();

        if (value == null) {
            if (formField.getValue() == null) {
                value = (String) evaluate(pCtx, formField, formField.getDefaultValue());
            } else {
                value = (String) evaluate(pCtx, formField, formField.getValue());
            }
        }

        html.append(hiddenField(pCtx, formField, (value == null) ? "" : ("" + value)));

        return html;
    }
}
